Trinkwasser Leitungsbau

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Construction of a new drinking water network at the DLR site. In essence, the following main services are to be carried out: • Excavation and backfilling of trenches with a total length of approx. 5 km • Breaking up and reinstating surfaces (approx. 5,500 m² paved) • Laying of drinking water pipes made of PE 100, DN/OD 32 to DN/OD 250 over a length of approx. 6,300 m • Installation of various fittings and valves made of PE, cast iron and stainless steel • Installation of under-grade and above-grade hydrants (10 + 2 units) • Construction of valve/manhole and building connection shafts (6 units) • Installation of cable draw pits/manholes (5 units) and laying of empty conduits/ducts (approx. 200 m) • Switching/cross-connection of existing pipelines to newly laid pipelines • Temporary cross-connections on building connection pipelines outside buildings Construction of a duct bank/empty conduit route in Street I over a length of approx. 320 m • Duct bank/empty conduit route 3 layers with 5 pipes each DA 160 • 3 cable draw pits/manholes LxB=2.5 x 2.0 m (“Südring”, “Kantine” and “Nordring”) • 1 cable draw pit/manhole LxB=2.0 x 1.5 m (“Tennis”) Construction of a new drinking water…

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